Jimmy Iqbal Wiranata Siregar, Andysah Putera Utama Siahaan, Muhammad Iqbal, Darmeli Nasution, and Rian Farta Wijaya, “SENTIMENT CLASSIFICATION ON E-COMMERCE USER REVIEWS WITH NATURAL LANGUANGE PROCESSING (NLP) AND SUPPORT VECTOR MACHINE (SVM) METHODS”, IJECOM, vol. 4, no. 1, pp. 37–41, Mar. 2025.